MOBILE SAFETY GRATING FOR WINDOWS AND DOORS THAT CAN BE COMBINED WITH THE ROLLING SHUTTERS

Abstract: The invention realizes a security grating for windows and doors that fold up under the lintel, that can be used in a combined way with the rolling shutters for domestic, commercial and industrial use.

Description: "Mobile safety grating for windows and doors that can be combined with the rolling shutters" For new systems of armoured rolling shutters, the following patents have been issued in the name of the inventor Giovanetti Quinto: Italian Patent n°.1187106 dated 16/12/1987 absorbed by the European Patent n°.0248837 dated 01/12/1986; Italian Patent n°.1234471 dated 18/05/1992. The following have also been deposited: the application for an Italian Patent n°. RA-92A000011 dated 10/07/1992 and that of an application for an International Patent n°. PCT/IT93/00065 dated 22/06/1993, the application for an Italian Patent n°. RA- 93A000014. The present invention, while using the pertinent technichal innovations as patented above for the rolling shutters, combines a real grating to them allowing for the full opening of the window or the door for free vision or for the passage of air and light, without compromising the protection of the environment during such opening. When the gratings are used in combination with the rolling shutters special guides are used (1) that allow for the placing of the grating both on the inside as well as on the outside of the rolling shutter respecting the aesthetics of the building. In the other cases the grating is applied with autonomous guides (15). The reduced space and the compatibility with the other fixtures enables the grating to be installed in all windows and doors without the necessity of modifications. The grating is easy to open at any time by the folding together of its elements under the lintel of the window or the door (fig.12). The movement takes place by the traction of two pins (12) at the bottom by means of cables (23). Connected to a device placed above the grating that, first activeates the opening of the hinge (7) of the lateral guides (1 - 15), then activates the lifting winch. The grating can also be rolled on to a supporting bar eliminating the traction cables (23) from the base. The peices that make up the grating are produced with highly resistant materials in sizes that correspond to the various safety requirements. Therefore, the strong hooking of the pins (12) of the grating to the lateral guides (1 - 15) that also blocks the movement in the vertical direction, the insertion of the grating into the sill (18 - 19), are application that give the grating the best resistance against cutting, lifting and breaking in by any means. The combination of the grating and the armed rolling blinds realizes, for the first time, a double defence barrier that offers the maximum protection possible. MECHANICAL AND WORKING PROCESS The grating (fig.l) is made with horizontal steel tubes with a thickness that depends upon the protection requested (10) joined to each other by strong vertical connecting rods (22) that allow for the folding up movement. Instead of straight bars, the grating can be made with curved steel elements to form grills with different patterns. Laterally the grating is fixed by means of pins with heads (12) to special metal guides (1,15) firmly screwed with numerous bolts to the wall. These guides have variuos functions: a) the holding of the grating (21) and of the slats (11), in the combined guide or the holding of the grating only (21) in the single guide (15); b) the blocking of the vertical sliding of the grating by means of the locking of the lateral ends of the same in the grooves (16) of the hinges (7); c) of permitting, after the opening of the hinges (7) that frees the movement, the lifting up by folding up of the grating under the lintel (fig.12) or the rolling up inside the box. Both the guides (1,15) have stop flaps (3,4) inside them to hold the heads of the pins (12), and that regulate the vertical sliding of the grill. What's more they have a steel hinge (7) with a wider side that acts as a window lock, in which it has fixed onto it by means of bolts or welding, a steel strip (8) (fig. 3,5,6,7) with various plates in an angular position into the holes (17) of which the hooked teeth of the bolt bar (9) penetrate. The lowering of the bar of the bolt (9), by means of a common mechanism placed inside the box of the rolling shutter, or in another place in the room, brings about, first the placing in position of the closure on the window side of the hinge (7 - 8) and immediately afterwards, the penetration of the hooked teeth of the bolt (9) into the holes (17). In this manner all the lateral extremities (10) of the grating become hooked together with their covering (21) inside the grooves (16) of the hinge (7). In the opposite direction, that is by lifting the bar of the bolt (9) one opens the window hinge freeing the end of the grating that can be raised so as to fold it up under the lintel. An operation that takes place by means of a simple winch that pulls and rolls the two steel cables (23) connected to the first two pins (12) at the bottom of the grating. (Fig. 12) The entire control device place above the grating can be manouvered by hand or eletrically. In the combined guide (1) placed in the special groove (5) is a toothed bolt bar (13) the semi-circular movement of which places the teeth of the bolt bar in the running area of the pins (12) that meet the slats (11) of the rolling shutters at the guide (1) blocking the sliding. O In the extreme ends of the steel pipes (10) special pins (20) are inserted and definitely fixed by welding, these pins have a cavity inside them with a thread for screwing in the pins (12) for hooking on the guides (1,15). Necessitating a major resistance, before the positioning of the pins (20) in the tubes (21) tempered steel rods of a diametre equivalent to the cavity are inserted into the tubes (10). Successively connecting rods (22) are slipped into steel tubes (10) with the application between them of another tube (21) in metal or plastic material. As well as stopping the movement of the connecting rods the covering tube gives an excellent protection for the steel tube of the grating (10) and also a longer lasting colour. Having completed the composition of the grating, the pins with heads (12) are screwed into the pins (20). Some strong hooks are fixed into the lintel of the window to which the last tube (21) at the top of the grating will then be attached. These hooks are of a variable length and also serve to compensate the eventual difference of the height of the grating in comparison to the window or the door. Then put onto the window-sill or onto the door-sill of the French window, the base in metal with two cavities (18) on which the two lateral guides (1) will rest and into which the first tube (21) at the bottom of the grating and the first slat (11) of the rolling shutter will penetrate. When installing the grating only the base with a single cavity (19) is used. At this point tha lateral guides (1,15) with the grating inserted and held momentarily folded with a strap are screwed to the wall. Successively the following are connected to the monoeuvre controlls: the hinges (7), the bolts (9,13), the steel cables (23), making the fixture functional. Where in the windows and doors, boxes for the rolling shutters do not exist and only the gratings with the special guides (15), the mechanisms for movement are enclosed in a strong steel box to apply under the lintel. LIST OF REFERENCE NUMBERS 1) Metal guide for grating and rolling shutter 2) Internal flaps for holding the bolt 3) Internal flaps for holding pins (12) of the grating (10) 4) Internal flaps for holding pins (12) of the rolling shutters 5) Groove for lodging bolt shaft (13) 6) Groove for gaskets 7) Hinge with side with holes for blocking grating (10) 8) Strip of plate with holes in corners for hooks of bolt 9) Bolt shaft with hooked teeth 10) Grating tube 11) Slat of rolling shutter 12) Pin with head for linking 13) Rod with teeth for bolt 14) Gasket 15) Metal guide for grating only 16) Groove in the hinge (7) for grating tube 17) Hole for hook of bolt (9) 18) Base support for double guide (1) 19) Base support for single guide (15) 20) Pin for attachment of pin (12) to tube (21) 21) Covering tube 22) Connecting rod for joining of tubes (10) 23) Metal cable

Claims: CLAIMS 1) Mobile grating for windows and doors characterized by the fact of including special peices that consent: a) the hooking on of the lateral ends of the grating by means of pins with head (12) to the lateral holding guides (1,15); b) the lifting of the grating by the folding up of the same under the lintel or the normal rolling up into the box; c) the combining of the mobile grating with the rolling hutter (fig.1,3); d) the fitting of the grating and of the rolling shutter, both in a combined way or alone, into a holding base (18.19) put onto the window-sill or into the door-sill. 2) Tubular steel profiles of a suitable thickness (10) for the formation of the grating, according to claim I, characterized by the fact of having in the ends pins with a threaded cavity (20) for screwing in the pins with heads (12) that serve for hooking on the profiles themselves to the lateral guides (1,15); 3) Metal guide (1) according to claim 1, characterized by the fact of forming on one side of it four distinct seats for the contemporary reception and the blocking of the profiles (10-21) of the mobile grating and of those of the rolling shutter (11), with flaps (3,4) for the holding and the adjustment of the run of the holding pins (12) of the same profiles to the guides. 4) Metal guide (1) according to claim I, charaerized by the fact of having a semi¬ circular groove (5) inside it for lodging the toothed bolt (13) that serves for the blocking of the movement of the pins (12) of the rolling shutter (11). 5) Metal guide (15) according to claim I, characterized by the fact of forming on the inside of it two distinct lodgings for the reception and the blocking of the profiles (21) of the mobile grating, with flaps (3) for the holding and the adjustment of the run of the pins with head (12) for the hooking on of the same profiles to the guide (15). 6) Metal guide (1,15) according to claim I, characterized by the fact of having on the inside of them an arm with two flaps (2) for housing the rod of the bolt (9). 7) Metal guide (1,15) according to claim I, characterized by the fact of having a steel hinge (7) the larger side of which has the function of a window-lock, with this scope it has grooves (16) for slotting in the profiles (21), and has bolted or welded onto it a steel strip (8) with plates in an angular position that have a hole (17) for receiving the hooks of the bolt (9). 8) Guide in metal (1,5) according to claim I, characterized by the fact of having inserted in the special housing inside it (2) a metal bar with hooked teeth (9) that serves as a bolt for the closing and the opening of the same hinge (7,8) having the function of locking. 9) Mobile grating according to claim I, characterized by the fact of having in its base a metal base (18 - 19) fixed onto to the window-sill or into the door-sill of the French window for the joint reception of the grating itself and of the rolling shutter (19) or only the grating (19).

Inventors: GIOVANETTI QUINTO, GIOVANETTI, QUINTO
Applicants: GIOVANETTI QUINTO, GIOVANETTI, QUINTO
Application year: 1994
Main classification: E06B9
IPC codes: E06B9